Figure 54-1 ​ ​

question 81

Multiple Choice

Figure 54-1 ​

​
In Experimental Condition 1 of the accompanying figure, the distribution of Balanus suggests that:

• A) interspecific competition kept Balanus from extending higher into the intertidal area.
• B) intraspecific competition kept Balanus from extending higher into the intertidal area.
• C) an unfavorable environmental factor kept Balanus from extending higher into the intertidal area.
• D) Balanus is less motile than Chthamalus .
• E) Balanus is more motile than Chthamalus .

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